<!DOCTYPE html>
<body>
  <p>First</p>
  <p>
    <style scoped>
      @supports (color: rainbow) {
        p { text-decoration: underline }
      }
      @supports (color: blue) {
        p { color: blue }
      }
    </style>
    Second
  </p>
  <p>Third</p>
</body>
